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ease}.edit-project-icon:hover{opacity:1}.delete-project-icon{width:16px;height:16px;cursor:pointer;padding:4px;margin-left:4px;border-radius:3px;transition:all .3s ease;-webkit-user-select:none;user-select:none}.delete-project-icon:hover{background-color:#f443361a;transform:scale(1.1)}.detail-content.collapsed+.detail-header .toggle-button:after{transform:rotate(-90deg)}.detail-content{transition:max-height .5s ease-in-out;max-height:1000px;overflow:hidden}.detail-content.collapsed{max-height:0}.nodes-area{margin-top:30px}.empty-nodes{color:#888;font-style:italic;padding:10px 0}.node-list{margin-top:15px}.node-item{background-color:#fff;border:1px solid #eee;border-radius:6px;padding:12px;margin-bottom:12px;white-space:break-spaces;text-align:left}.node-header{display:flex;justify-content:space-between;margin-bottom:10px;font-weight:700;text-align:left}.node-content p{margin-bottom:10px;font-size:.9em}.node-time{font-size:.7em;color:#888}.node-file{font-size:.9em;color:#666}.view-toggle-area{margin:20px 0;display:flex;justify-content:center}.view-toggle-button{background-color:#4caf50;color:#fff;border:none;padding:8px 15px;border-radius:4px;cursor:pointer;font-weight:700}.view-toggle-button:hover{background-color:#45a049}.modal{position:fixed;top:0;left:0;right:0;bottom:0;background-color:#00000080;display:flex;align-items:center;justify-content:center;z-index:1000}.modal-content{background-color:#fff;padding:25px;border-radius:8px;width:90%;max-width:500px}.form-item{margin-bottom:15px;position:relative;text-align:left}.form-item label{display:block;margin-bottom:5px;font-weight:700;text-align:left}.form-item .selected-contact{display:inline-block;margin-right:10px;margin-bottom:0}.form-item .contact-btn{display:inline-block}.form-item input,.form-item textarea{width:100%;padding:8px;border:1px solid #ddd;border-radius:4px;box-sizing:border-box}.form-item textarea{min-height:100px;resize:vertical}.form-actions{display:flex;justify-content:center;gap:10px;margin-top:20px}.form-actions button{padding:8px 15px;border:none;border-radius:4px;cursor:pointer}.form-actions button:first-child{background-color:#4caf50;color:#fff}.form-actions button:last-child{background-color:#f5f5f5;color:#333}.file-upload-container{margin-bottom:15px}.file-upload-area{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:30px;border:2px dashed #ddd;border-radius:8px;background-color:#fafafa;cursor:pointer;transition:all .3s ease}.file-upload-area:hover,.file-upload-area.drag-over{border-color:#4caf50;background-color:#f0f9f0}.file-input{display:none}.upload-icon{font-size:32px;margin-bottom:10px;color:#666}.upload-text{color:#666;font-size:14px}.uploaded-file{display:flex;align-items:center;padding:10px;background-color:#f5f5f5;border-radius:4px;margin-top:10px;gap:10px;font-size:.9em}.file-label{display:flex;align-items:center;gap:8px;color:#4caf50;flex:1}.file-label:before{content:"📎";font-size:16px}.uploaded-files{margin-top:10px}.uploaded-files-header{display:flex;justify-content:space-between;align-items:center;padding:8px 0;border-bottom:1px solid #eee;margin-bottom:10px}.files-count{font-weight:700;color:#4caf50}.clear-all-btn{background-color:#ff6b6b;color:#fff;border:none;padding:4px 8px;border-radius:4px;cursor:pointer;font-size:12px;transition:background-color .3s ease}.clear-all-btn:hover{background-color:#ff5252}.uploaded-file-list{max-height:200px;overflow-y:auto}.uploaded-file-item{display:flex;align-items:center;padding:8px 10px;background-color:#f8f9fa;border-radius:4px;margin-bottom:5px;gap:10px;font-size:.85em;border-left:3px solid #4CAF50}.uploaded-file-item:last-child{margin-bottom:0}.file-name{flex:1;color:#333;font-weight:500;word-break:break-all}.file-size{color:#666;font-size:.8em;white-space:nowrap}.summary-area{display:flex;flex-direction:column;align-items:center}.summary-area button{margin-top:15px;padding:8px 15px;border:none;border-radius:4px;cursor:pointer;background-color:#4caf50;color:#fff}.delete-btn{background-color:#f44;color:#fff;border:none;padding:4px 8px;border-radius:4px;cursor:pointer;font-size:.8em;white-space:nowrap;transition:background-color .3s ease}.delete-btn:hover{background-color:#c00}.detail-area h2{display:none}.detail-item{margin-bottom:16px;padding:12px;background:#fff;border-radius:6px;box-shadow:0 1px 3px #0000001a;text-align:left}.detail-item .label{display:block;font-size:12px;color:#666;margin-bottom:8px;text-align:left}.detail-item span,.detail-item p{display:block;font-size:14px;color:#333;line-height:1.6}.custom-toast{position:fixed;top:20px;left:50%;transform:translate(-50%);background-color:#333;color:#fff;padding:12px 24px;border-radius:4px;display:flex;align-items:center;gap:12px;box-shadow:0 4px 12px #00000026;z-index:9999;transition:opacity .3s ease}.toast-icon{width:20px;height:20px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:700}.toast-icon.success{background-color:#4caf50}.toast-icon.error{background-color:#f44}.toast-message{font-size:14px;line-height:1.4}.node-type{font-size:.65em;font-weight:400;padding:3px 4px;border-radius:4px;color:#fff;width:30px;margin-left:8px}.node-type-email{background-color:#2196f3}.node-type-other{background-color:#4caf50}.collaborators-section{display:flex;flex-direction:column;gap:10px}.collaborators-list{display:flex;flex-wrap:wrap;gap:8px}.collaborator-tag{display:inline-flex;align-items:center;background-color:#e3f2fd;color:#1976d2;padding:4px 8px;border-radius:16px;font-size:12px;gap:6px}.remove-btn{background:none;border:none;color:#666;cursor:pointer;font-size:14px;font-weight:700;padding:0;width:16px;height:16px;border-radius:50%;display:flex;align-items:center;justify-content:center;transition:all .2s ease}.remove-btn:hover{background-color:#f44;color:#fff}.node-title{display:flex;align-items:center;justify-content:space-between;width:100%}.node-actions{display:flex;align-items:center;gap:4px}.edit-node-icon,.delete-node-icon{width:14px;height:14px;cursor:pointer;padding:2px;border-radius:3px;transition:all .2s ease;-webkit-user-select:none;user-select:none}.edit-node-icon:hover{background-color:#4caf501a;transform:scale(1.1)}.delete-node-icon:hover{background-color:#f443361a;transform:scale(1.1)}.add-collaborator-btn{background-color:#f5f5f5;border:1px dashed #ccc;color:#666;padding:8px 12px;border-radius:4px;cursor:pointer;font-size:12px;align-self:flex-start;transition:all .2s ease}.add-collaborator-btn:hover{background-color:#e0e0e0;border-color:#999;color:#333}.no-collaborators{color:#999;font-style:italic;font-size:12px}